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authorMaxime Bizon <mbizon@freebox.fr>2012-10-29 14:40:19 +0100
committerIngo Molnar <mingo@kernel.org>2012-10-30 10:16:46 +0100
commitd7959916026aaae60e1878ae33c7503b2cc4471d (patch)
tree6294336cfaa55421d2fd9202cf6eaeb68b83d57d /arch
parentf49f4ab95c301dbccad0efe85296d908b8ae7ad4 (diff)
x86/ce4100: Fix reboot by forcing the reboot method to be KBD
The default reboot is via ACPI for this platform, and the CEFDK bootloader actually supports this, but will issue a system power off instead of a real reboot. Setting the reboot method to be KBD instead of ACPI ensures proper system reboot. Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Florian Fainelli <ffainelli@freebox.fr> Cc: rui.zhang@intel.com Cc: alan@linux.intel.com Link: http://lkml.kernel.org/r/1351518020-25556-3-git-send-email-ffainelli@freebox.fr Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/platform/ce4100/ce4100.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 5de16e359fe6..92525cb8e54c 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -21,6 +21,7 @@
#include <asm/i8259.h>
#include <asm/io.h>
#include <asm/io_apic.h>
+#include <asm/emergency-restart.h>
static int ce4100_i8042_detect(void)
{
@@ -151,6 +152,15 @@ void __init x86_ce4100_early_setup(void)
x86_init.mpparse.find_smp_config = x86_init_noop;
x86_init.pci.init = ce4100_pci_init;
+ /*
+ * By default, the reboot method is ACPI which is supported by the
+ * CE4100 bootloader CEFDK using FADT.ResetReg Address and ResetValue
+ * the bootloader will however issue a system power off instead of
+ * reboot. By using BOOT_KBD we ensure proper system reboot as
+ * expected.
+ */
+ reboot_type = BOOT_KBD;
+
#ifdef CONFIG_X86_IO_APIC
x86_init.pci.init_irq = sdv_pci_init;
x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;